//
//  QJSNEtWorkRequestManager.m
//  aEP项目A
//
//  Created by lanou3g on 16/4/15.
//  Copyright © 2016年 qiu. All rights reserved.
//

#import "QJSNEtWorkRequestManager.h"

@interface QJSNEtWorkRequestManager()
//存储回调block属性
//@property (nonatomic,copy) ResultBlock block;

@end


@implementation QJSNEtWorkRequestManager

//单例方法
+(instancetype)defaultManager{
    static QJSNEtWorkRequestManager *manager = nil;
    @synchronized(self) {
        if (!manager) {
            
        manager = [[QJSNEtWorkRequestManager alloc]init];
        }
    }
    return manager;
}



//请求方法
+ (void)requesURL:(NSURL *)url Method:(URLRequestMethod)method Params:(NSDictionary *)param Result:(ResultBlock)resultBlock{
    
    //空的可变字符串
    NSMutableString *urlString = [NSMutableString new];//记性，错过
    if ([url isKindOfClass:[NSURL class]]) {
        //拼接url
        [urlString appendString:url.absoluteString];
    }else if([url isKindOfClass:[NSString class]]){
    
        [urlString appendString:(NSString *)url];
    }
    if (urlString.length == 0) {
        NSError *error = [NSError errorWithDomain:@"EPA" code:251 userInfo:@{@"reason":@"你输入的网址不正确"}];
        resultBlock(nil,nil,error);
        return;
    }
   //把参数字典转为字符串
    QJSNEtWorkRequestManager *manager = [QJSNEtWorkRequestManager new];
//    manager.block = resultBlock;
    
    NSString *paraStr = [manager strFromDict:param];
    switch (method) {
        case QJS_GET:
        {
            if (paraStr.length > 0) {
                [urlString appendFormat:@"?%@",paraStr];
            }
            
            //拼接
            [urlString appendString:paraStr];
           
            [manager requestURL:[NSURL URLWithString:urlString] resultBlock:resultBlock];
        }
            break;
        case QJS_POST:
            [manager postURL:urlString ParaStr:paraStr resultBlock:resultBlock];
            break;
        default:
            break;
    }
    
}
// Get网络请求
- (void)requestURL:(NSURL *)url resultBlock:(ResultBlock)block{
//    __weak typeof (self) weakSelf = self;
    
    NSURLSessionDataTask *dataTask = [[NSURLSession sharedSession]dataTaskWithURL:url completionHandler:block];

//开始网络请求
    [dataTask resume];
    
}

//Post网络请求
- (void)postURL:(NSString *)urlStr ParaStr:(NSString *)paraStr  resultBlock:(ResultBlock)block {
  //创建NSURl
    NSURL *url = [NSURL URLWithString:urlStr];
    //创建可变请求
    NSMutableURLRequest *mRequest = [NSMutableURLRequest requestWithURL:url];
    //设置Post
    [mRequest setHTTPMethod:@"POST"];
    //请求体
    [mRequest setHTTPBody:[paraStr dataUsingEncoding:NSUTF8StringEncoding]];
//    __weak typeof (self) weakSelf = self;
    NSURLSessionDataTask *dataTask = [[NSURLSession sharedSession]dataTaskWithRequest:mRequest completionHandler:block];
    //开始网络请求
    [dataTask response];

}



- (NSString *)strFromDict:(NSDictionary *)dict {
    //空数组
    NSMutableArray *array = [NSMutableArray new];
    for (NSString *key in dict) {
        NSString *str = [NSString stringWithFormat:@"%@=%@",key,dict[key]];
        [array addObject:str];
    }
    //数组拼接字符串
    NSString *para = [array componentsJoinedByString:@"&"];
    NSLog(@"%@",para);
    
    //返回
    return para;
}


@end
